diff --git a/components/calendar/index.en-US.md b/components/calendar/index.en-US.md
index 73e720a67c..fb2e6996ac 100644
--- a/components/calendar/index.en-US.md
+++ b/components/calendar/index.en-US.md
@@ -13,7 +13,15 @@ When data is in the form of date, such as schedule, timetable, prices calendar,
 
 ## API
 
-```html
+**Note:** Part of locale of Calendar is read from value. So, please set the locale of moment correctly.
+
+```jsx
+import moment from 'moment';
+
+// It's recommended to set locale in entry file globaly.
+import 'moment/locale/zh-cn';
+moment.locale('zh-cn');
+
 <Calendar
   dateCellRender={dateCellRender}
   monthCellRender={monthCellRender}
diff --git a/components/calendar/index.zh-CN.md b/components/calendar/index.zh-CN.md
index 2c10221253..20bb96916e 100644
--- a/components/calendar/index.zh-CN.md
+++ b/components/calendar/index.zh-CN.md
@@ -15,7 +15,15 @@ title: Calendar
 
 ## API
 
-```html
+**注意：**Calendar 部分 locale 是从 value 中读取，所以请先正确设置 moment 的 locale。
+
+```jsx
+import moment from 'moment';
+
+// 推荐在入口文件全局设置 locale
+import 'moment/locale/zh-cn';
+moment.locale('zh-cn');
+
 <Calendar
   dateCellRender={dateCellRender}
   monthCellRender={monthCellRender}